Lose Your Lemmings is a HTML5, online multilpayer game built by 6 people at IGDA Chicago Game Jam 2012.
There should be a demo available here: http://goo.gl/XJU8F However it's on a free tier of dotCloud, so there is no uptime guarantee.
This project/code is not clean or optimized, but is functional (built in ~30 hours).
This game is built on the Canvas Prime engine using NodeJS 0.8.x with Express 3.x and socket.io.
Exotic Drums music by Daniel Stephens http://opengameart.org/content/exotic-drums
Site: blueashes.com | Twitter: @ashbluewd
Twitter: @brainsforgames
Twitter: @jnmoses